Algebra Examples

$(- 2, 4)$ , $(- 1, 1)$ , $(0, 0)$ , $(1, 1)$ , $(2, 4)$

Since there is one value of $y$ for every value of $x$ in $(- 2, 4), (- 1, 1), (0, 0), (1, 1), (2, 4)$ , this relation is a function.

The relation is a function.

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$